Masterpiece Or Disasterpiece: Cheryl Cole's Mermaid Dress

WHAT: Cheryl brought some sparkle to the festivities with her strapless sequinned Eva Minge mermaid gown with ombre tulle skirt, accessorizing the look with diamond sparkler earrings, a statement cuff and a high ponytail.

BONUS INFO: For those who missed it, Cheryl performed a duet of Lady Antebellum's "Need You Now" with Gary Barlow, who looked dapper in his suit.

Is this a style winner from Cheryl? Or could she have picked a better option for such a regal occasion? Leave a comment and let us know and don't miss our gallery of highlights from the Diamond Jubilee Weekend.